however, last night, romney told fox news -- >> reporter: romney's solid debate performance gave him a new spark on the campaign trail. before an estimated 10,000 people in virginia, he kept up his attacks on the president. >> what you didn't hear last night from the president is why it is the next four years are going to possibly be better than the last four years. >> reporter: the obama campaign admits it needs a change in strategy for the next two debates. president obama held back from attacking romney during the debate but that changed when he returned to the campaign trail. >> i almost got to watch out. >> reporter: the president attacked romney's plan to cut subsidies to pbs and he said romney's positions were so different from what he said in the past he didn't even recognize who he was debating. >> whoever it was on stage last night doesn't want to be held accountable for what the real mitt romney has been saying for the last year. >> reporter: and again vice president biden gave the romney campaign another nugget to jump on. >> obama and biden want to raise taxes by $1 tril